In Stores

Categories
Pinboard
Subscribe to Blog

HAAS: Making G54-G59 show Z0 at the top of fixture

November 29, 2011, 10:50 pm by Eldar Gerfanov

Problem: Work offset G54 Z0 shows some "weird number" which is very hard to relate to.

Can we make top of fixture show Z0=0.000 ?

Solution:

FSWizard: Online CNC Machinists Calculator

October 14, 2011, 8:33 pm by Eldar Gerfanov

FSWizard Online is:

FSWizard is here

It is the most accurate Online Feeds and Speeds Calulator.

In order for every user to enjoy latest modifications and most accurate results, it is WEB Based.
This means that you can use it across all imaginable operational systems and devices.
All you need is an internet connected WEB browser.

Also a full functioning mobile version is available.

Key Features of FSWizard:

March 7, 2011, 12:26 pm by Eldar Gerfanov

G71 X Z A|I B D U H L E F J M Q

• D=First Depth of Cut
• U=Finish Depth of Cut
• J=Number of threads at F
• X=Target Depth (minor Dia of theread)
• Z=Coord of end Point
• B= Tool Cut angle
• H= Difference between major and minor dia of the thread
• M= Cut pattern
• M32= Longitudal

Code
N24 (T5 OD 60DEG CW THREAD TOOL)
N00 G97 G95 S300 M3
N01 G0 X2.1 Z3.05
N02 M8
N03 G0 X1.2
N04 Z0.1538
N05 X0.7
N06 G1 X0.5 F0.076
N08 G71 X0.4 Z-0.8269 D0.01 U0.003  B29. H0.05 F0.077 M32
N09 G0 X1.2 Z-0.8269
N40 Z3.05
N41 X2.1

Note: Feed mode must be in G95(IPR)

Milling Hardox Steel Rc 45-50

January 26, 2011, 10:17 pm by Eldar Gerfanov

Out Company used to have somebody else plasmacut cutting anvils for us.
This was expensive, plus heat generated by plasma caused already unstable anvils to warp like crazy making them very hard to grind flat.

So when foreman told me to machine one on CNC i immidately asked him to buy one of those nifty Hanita TiALN coated Varimill cutters.
Too bad they are too expensive. So the company bought same style of cutters made by Niagara. 0.5" end mill there is x3 cheaper than hanita's. Plus i believe cutting tools made to the same specs, out of the same materials are performing identical.

The machine we ve been using for this is really shaky and busted, so dont laugh at speeds and feeds that we came up with.

So basically, Specs Are:

• Material: Hardox pre-hardened steel Rc 45-50
• Cutter: 4 Flute, Stagger Flute TiALN coted 0.5" Micrograin Carbide End Mill, 2.5" Overall, 0.625" Flute Length, 1" overhang
• Operation: Slotting
• Speed: 1200 RPM
• Feed: 4.8 IPM
• Depth OF Cut: 0.125"
• Plunge method: 2.5 Deg Ramp/Helix, Or Plunge into 0.281Dia pilot hole at 3 IPM
• Coolant: Airblast + Oil

Drilling Hardox steel Rc 45-50

January 26, 2011, 10:16 pm by Eldar Gerfanov

Lately we've been doing alot of anvils out of 3/8 or 1/2" Hardox steel (Rc 45-50)
Aside from having to machine profiles and pockets we also have to drill some mounting holes.

International Minicut Speeds and Feeds

January 11, 2011, 7:39 am by Eldar Gerfanov

Here are the speeds and feeds for supercobalt minicut end mills.

Okuma Lathe G and M codes

January 8, 2011, 12:30 am by Eldar Gerfanov

Here is a list of Okuma G and M codes i got from the manual

Note Some codes may not be supported by your machine, all information is given as is and i dont give a ... if you break something.

Information given here is correct to the best of my knowlege

Repeating OKUMA CNC Lathe program number of times

January 6, 2011, 1:00 pm by Eldar Gerfanov

If you want OKUMA Lathe to repeat program several times you can use a subprogram or a conditional GOTO statement.

On Many Okumas subprograms is an option you have to buy, so we have to use GOTO statement.

Code
O1
CN=7 (NUMBER OF CYCLES TO REPEAT)
CC=0 (CURRENT CYCLE)
N0
......
(part program)
......
CC=CC+1
IF [ CC LT CN ] N0
M2

Thats it

This little code helps alot when using bar feeder and stuff like that.

Avoiding Chatter in corners of a pocket

January 3, 2011, 1:02 am by Eldar Gerfanov

If you are finishing a pocket with wall corners' radius close to the radius of a cutter. The tool tends to chatter, especially with longer tools and harder materials.

To avoid this you can do one of the following:

• When programming. After roughing the pocket and before finishing. Create a simple drill cycle with finishing tool to remove extra material from the corner. This way when finisher goes to the tight corner, the chatter will virtually disappear.
• Do the same with a drillbit. Before Roughing.

Hanita Varimill II Speeds and feeds

December 24, 2010, 8:27 pm by Eldar Gerfanov

Hanita Varimill II Speeds and feeds Table

Plus Ordering information